The Mathematical Modeling Method In The Evaluation Of Indoor Lighting

With the progress of human civilization,the development of society,people on the level of quality of their lives more and more attention,because the modern people most of the time is spent indoors,so indoor lighting quality has become the focus of more and more people's attention.At present,domestic and foreign scholars on the research of indoor lighting quality evaluation methods are developing very rapidly.One of the most common indoor lighting quality evaluation methods include subjective evaluation,factor analysis,behavioral observation and fuzzy comprehensive evaluation.According to the method of subjectivity is too strong,the concept of the evaluation process boundaries are not clear phenormenon,this paper combines the membership function and fuzzy comprehensive evaluation method,solves the defects of determining the membership of the subjectivity is too strong in the process of determining human.According to the previous evaluation model in the fuzzy and stochastic description is difficult,and the results described is not precise,not accurate on issues such as evaluation,the cloud model is introduced into the fuzzy comprehensive evaluation,establishes a fuzzy comprehensive evaluation model based on cloud model,through the expectation,entropy and hyper entropy to quantify randomness in the evaluation process and fuzzy,and the evaluation results indicated that method is extended from one point to the interval,which makes the evaluation results more objective and precise description,mathematical modeling provides a new way to indoor lighting quality evaluation.In this paper,the above two methods are applied to the lighting quality of a classroom in Suzhou University of science and technology.Fuzzy comprehensive evaluation model is improved because the membership function of concrete and make the evaluation results compared to the previous subjective choice of membership method is more objective,makes the evaluation results more convincing;and fuzzy comprehensive evaluation method based on cloud model,because the entropy and hyper entropy on the evaluation results uncertainty and uncertainty degree of expression of vivid image and display,so that the final evaluation results are more precise,at the same time,through the example and MATLAB simulation of the verification results from images more intuitive to show the real situation of the indoor lighting quality.The universality of the method is verified by the results.